I've seen a few different views and opinions on this and this thread struck my curiosity. I will be taking b12 with my next cycle (subcutaneously). I've seen advice on doing 1000mcg ed, and I've seen people say that this is too much. I've also seen that b12 is not toxic at any level but b12complex is, and that you can't inject it ed. Also that you can't even tell the effects of the b12, energy increase and increase in appetite. What are your thoughts, experiences? Is subcutaneous an exceptable way to inject b12? I'm wanting to get the full benefits and I've seen contradicting information, but have yet to get it from anyone that has actually used it 1000mcg ed.